Ensuring Data Integrity in Java: Exploring @NotEmpty, @NotNull, and @NotBlank Annotations
Learn about the essential annotations in Java - @NotEmpty, @NotNull, and @NotBlank - and how to use them to validate your data and ensure its integrity.
Category Development & Infrastructure
Comprehensive guides on popular programming languages, frameworks, architectures, and engineering best practices.
Java Cheatsheet: Data Types, Control Flow, Classes, Inheritance, and More
This Java cheatsheet covers some of the most commonly used features and syntax in the Java programming language, including data types, control flow statements, arrays, classes and objects, inheritance, interfaces, and exception handling.
5 Ways How To Read a Text File in Java
There are different ways to use Java to read a Text File. Let's see some of the methods we can use Java to read the contents of a file
How to specify Java version in Spring pom.xml
Since version 9, Java has new features every 6 months and it’s very hard to keep track of these new changes. If you’re thinking about migrating to a specific Java version is recommended to make a complete diff of APIs between selected Java versions.
How to Build a RESTful Web Service with Spring Boot
Spring is one of the most widely used frameworks for developing enterprise applications, providing a robust programming and configuration model. This guide walks you through the process of creating a “Hello, World” RESTful web service with Spring Boot.
Android Application Development – Settings Tutorial
Settings inside your app allow uses to modify features and behaviors. When application is relaunched certain information are still stored. Of course we can provide a default value for each settings voice. To provide settings for your app, we can…
Android Application Development – ListView Tutorial
There are different ways to implement a list of multiple line items on Android Apps. They can be used for data selection as well as drilldown navigation. ListView is a group that can display our scrollable items. Usually when the…
